14407121 has 2 divisors, whose sum is σ = 14407122. Its totient is φ = 14407120.

The previous prime is 14407117. The next prime is 14407123. The reversal of 14407121 is 12170441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11730625 + 2676496 = 3425^2 + 1636^2 .

It is an emirp because it is prime and its reverse (12170441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14407121 - 2² = 14407117 is a prime.

Together with 14407123, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 14407093 and 14407102.

It is not a weakly prime, because it can be changed into another prime (14407123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7203560 + 7203561.

It is an arithmetic number, because the mean of its divisors is an integer number (7203561).

Almost surely, 2^14407121 is an apocalyptic number.

It is an amenable number.

14407121 is a deficient number, since it is larger than the sum of its proper divisors (1).

14407121 is an equidigital number, since it uses as much as digits as its factorization.

14407121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 14407121 is about 3795.6713503674. The cubic root of 14407121 is about 243.3281763257.

Adding to 14407121 its reverse (12170441), we get a palindrome (26577562).

The spelling of 14407121 in words is "fourteen million, four hundred seven thousand, one hundred twenty-one".